120 pounds decreased by 5%

Mathematics

2 answers:

astra-53 [7]2 years ago

7 0

Answer:

114 pounds

Step-by-step explanation:

belka [17]2 years ago

5 0

114 should be the answer

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There are 240 coins in a jar, all dimes and quarters. The value of the coins in the jar is $27.60. There are nine times as many

sammy [17]

I believe it is 28 dimes
.25 × 30 = 7.50
.10 × 190 = 19
19 + 7.50 = 26.50
Then, you add 4 more quarters which is 27.50 and the 28 dime makes it 27.60

4 0

3 years ago

Which of the following ordered pairs could not be included in this set if its a function? (-4,2) (3,6) (4,3) (?,?)

Debora [2.8K]

Given:

The set of ordered pair (-4,2), (3,6), (4,3), (?,?).

To find:

The ordered pairs that could not be included in this set if its a function.

Solution:

We know that, a relation or a set of ordered pairs is a function if there exist a unique output (y-value) for each input (x-value).

If (-4,-3) point is included in the given set of ordered pair, then we have $y=-3,2$ for $x=-4$ .

Since there are more than one output value at $x=-4$ , therefore the given set of ordered pairs will not be a functions after including the point (-4,-3).

If points (1,2), (3,6) and (-3,6) are included in the given set of ordered pair, then there exist a unique output for each input.

So, the given set of ordered pairs will be a functions after including the points (1,2), (3,6) and (-3,6).

Therefore, the correct option is A.

8 0

3 years ago

X^2+10x-y+15=0 what is the vertex of this parabola?

LuckyWell [14K]

$\displaystyle\bf\\x^2+10x-y+15=0\\\\y=x^2+10x+15\\\\\Delta=b^2-4ac=10^2-4\cdot15=100-60=\boxed{\bf40}\\\\Vertex~is~~V\Big(x=\frac{-b}{2a};~~y=\frac{-\Delta}{4a} \Big)\\\\\\V_x=\frac{-b}{2a}=\frac{-10}{2}=\boxed{\bf-5}\\\\\\V_y=\frac{-\Delta}{4a}=\frac{-40}{4}=\boxed{\bf-10}\\\\\\\implies~\boxed{\boxed{\bf~V\Big(-5;~-10\Big)}}$